Like the Kung Fu masters harness the power of two blows into one, Castelli harnessed the power of a jacket into a jersey. The Trasparente Due Wind Long Sleeve Jersey is just as strong as wind jacket, but just as comfortable as your favorite summer-weight jersey. Combining lightweight, patented materials with an anatomic, cycling-specific fit, the Trasparente Due fights the wind and keeps you warm through the shoulder seasons. Castelli's Trasparente Due Wind jersey is made from both the patented WindStopper X-Lite Plus and Warmer fabrics. As their names suggest, the materials work in concert to insulate and block wind. To shield you from the winter chills where they actually occur, Castelli placed the WindStopper material on the front of the jersey, or as Castelli refers to it, its lightest wind jacket ever. The front is 100% windproof, so you don't have to worry about rogue breezes blowing through the jersey. This, in tandem with the Warmer material on the back, provides a consistent internal temperature. Sure, the jersey is warm, but you don't need to worry about overheating or drowning in your own sweat. Both of the materials are highly breathable and possess excellent moisture transferring properties. Should you need to dump heat on-the-fly, Castelli included a full-length, camlock zipper on the front of the jersey. And to secure the overall fit of the Trasparente, a multi-panel design has been incorporated with the added assistance of an elastic gripper at waist. Castelli also included three rear pockets and Napoleon zip-pocket to stow your ride essentials, and reflective accents have been placed throughout the jacket for heightened visibility in low-light conditions. The Castelli Trasparente Due Wind Long Sleeve Jersey is available in six sizes from Small to XXX-Large and in the colors Anthracite/black/yellow fluorescent, Black, Red/black/white, and White/black/cyan.